November 2025
Intermediate to advanced
416 pages
10h 46m
English
book
Digital Immune System
by Sujata Priyambada Dash, Vaibhav Mishra, Bijeta Shaw, Sandeep Kumar Panda, S. Balamurugan
Content preview from Digital Immune System
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16Privacy-Preserving and Scalable Authentication Using zk-SNARK-Based ZKP Blockchain PKI
Amrutanshu Panigrahi1*, Bibhuprasad Sahu2, Abhilash Pati1 and Subrata Chowdhury3
1Department of CSE, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar, Odisha, India
2Symbiosis Institute of Technology, Hyderabad Campus, Symbiosis International University, Pune, India
3Department of Computer Science & Machine Learning, Sreenivasa Institute of Technology and Management Studies, Chittor, India
Abstract
Public key infrastructure (PKI) establishes secure communication over digital interfaces and authorized access to technology resources. Traditional PKI systems have weaknesses such as key compromise, trust management failure, escalated vulnerabilities due to a unitary point of failure, and other shortcomings, unlike basic PKI Models, which operate with a certificate authority (CA) centrally. The study proposes blockchain PKI based on zero-knowledge proofs (ZKP), which, with the use of zk-SNARKs, strives to make existing frameworks more efficient and secure. Enhanced privacy guarantees from zk-SNARKs, alongside distributed blockchain, facilitate this. The blockchain acts as an all-encompassing store for certificates where personal privacy is maintained while validation is conducted. Humans can be less dependent on smart contracts, which automate the issuance, validation, and revocation of certificates, enhancing privacy. These characterize the system with ideal universal deployment ...
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